A study of the possible association between adenosine A2A receptor gene polymorphisms and attention-deficit hyperactivity disorder traits.

The adenosine A2A receptor (ADORA2A) is linked to the dopamine neurotransmitter system and is also implicated in the regulation of alertness, suggesting a potential association with attention-deficit hyperactivity disorder (ADHD) traits. Furthermore, animal studies suggest that the ADORA2A may influence ADHD-like behavior. For that reason, the ADORA2A gene emerges as a promising candidate for studying the etiology of ADHD traits. The aim of this study was to examine the relationship between ADORA2A gene polymorphisms and ADHD traits in a large population-based sample. This study was based on the Child and Adolescent Twin Study in Sweden (CATSS), and included 1747 twins. Attention-deficit hyperactivity disorder traits were assessed through parental reports, and samples of DNA were collected. Associations between six single nucleotide polymorphisms (SNPs) and ADHD traits were examined, and results suggested a nominal association between ADHD traits and three of these SNPs: rs3761422, rs5751876 and rs35320474. For one of the SNPs, rs35320474, results remained significant after correction for multiple comparisons. These results indicate the possibility that the ADORA2A gene may be involved in ADHD traits. However, more studies replicating the present results are warranted before this association can be confirmed.

Gumpert, CKarolinska Institutet (author)
Serlachius, EKarolinska Institutet (author)
Lichtenstein, PKarolinska Institutet (author)
Walum, H (author)
Johansson, DanielGothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology (author)
Anckarsäter, Henrik,1966Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi,Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry(Swepub:gu)xanche (author)
Westberg, Lars,1973Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology(Swepub:gu)xwelar (author)
Eriksson, Elias,1956Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology(Swepub:gu)xereli (author)
Halldner, LKarolinska Institutet(Swepub:umu)liha0065 (author)
Karolinska InstitutetInstitutionen för neurovetenskap och fysiologi, sektionen för farmakologi (creator_code:org_t)

By the author/editor: Molero, Y; Gumpert, C; Serlachius, E; Lichtenstein, P; Walum, H; Johansson, Danie ...; show more...; Anckarsäter, Hen ...; Westberg, Lars, ...; Eriksson, Elias, ...; Halldner, L; show less...

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Basic Medicine; and Pharmacology and ...

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Psychiatry

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Basic Medicine; and Medical Genetics

By the university: University of Gothenburg; Umeå University; Karolinska Institutet

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